Nut-lock.



No. 730,199. 4 PATBNTBD JUNM, 19.03. M. I..` THEDPQRD. 1

NUT LOCK.'

APPLICATION HLrn nso. a1. 1902.

No MODEL.

UNITED STATES latented 3 une 2, 1903.

PATENT OFFICE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent NO. 730,199, datl Jue 2, 1903.

Application filed December 31, 190,2. Serial No. 137,349. (No model.)

To all whom, it may concern:

Be it known that I, MARSHALL L. THED- FORD, a citizen of the United States, residing at Dyersburg, in the county of D yer and State of Tennessee, have invented certain new and useful Improvements in Nut-Locks, of which the-following is a specication.

My invention relates to nut-locks; and one of its objects is to produce a device which will hold a nut securely locked in one position and prevent its working loose from vibration or other causes growing out of the use of the rail or other object upon which my device may be used.

vAnother object of my invention is to produce a nut-lock of the character described which may be used for locking a nut either temporarily or permanently.

Another object of my invention is to produce a nut-lock of the character described which may be used upon a Abolt or other threaded end projected in any direction.

Another object of my invention is to produce a nut-lock of the character described which shall be provided with integral means for holding it rigidly in place against the face of the surface through which the bolt or other threaded end may be passed.

I attain these and other objects not specially enumerated by use of the construction and novel combination and arrangement of the parts which are described in this specication,

l pointed out in the claims, and illustrated in the accompanying drawings, which form a part of this specification, and in which- Figure l is a perspective view of a nut locked temporarily by use of one form of my invention. Fig. 2 is a perspective view of the same form of my invention disengaged from the nut. Fig. 3 is an end View of the. Washer-base of my nut-lock, showing the relative position of the hinged clasp which holds one arm of the lock-flap ina fixed position around the nut. Fig. 4 is a detail View of a fractional part of my device, showing in an unfastened position the clasp which I may use in holding the nut-encompassing arms of the lock-flap permanently in position around the nut. Fig. 5 is a similar View showing said clasp in a fastened position, and Fig. 6 is a perspective View of a nut locked with my device by use of my rotatable clasp on one of 1 is the washer-base of my device, 2 is the lock-Hap thereof, and 3 the hinge which holds these two parts rotatably fastened together.

4 4 are nut-encompassing arms integrally provided on the lock-flap of the hinged device thus formed, and 5 is a rotatablypivoted side clasp mounted on a shoulder 7, which is provided on one end of the washer-base.

6 is a rivet passed through apertures provided through the pivot end of said clasp 5 and said shoulder 7. l

8 is an aperture provided through the arm 4 on the clasp side ofthe nut to engage the hook or bend 13, provided on the loose end of the clasp, when said clasp is sprung over said arm after said arm has .been brought down against the'face of the washer-base, and thus prevent the clasp from working oif of said arm.

10 10 10 10 are integral lugs projected downwardly from the corners of the washer-base and adapted to be forced into the face of the surface against which said washer-base is pressed as the nut 9is screwed down over the end of the bolt 14 after said bolt has been passed through the' aperture 11, provided through the washer-base, and before the arms 44'areclosed down around the nut and locked by use of the clasp.

Without meaning to be limited to the exact construction and arrangement of parts above shown and described, since I am aware that many minor changes may be made in them without departing from the scope and spirit of myy invention,

What I claim, and desireto secure by Lettersv Patent, is

1. In nut-locks, the combination with a washer-base and a uut-encompasing lock-Hap hinged together, of a side clamping rotatable clasp, comprising a clasp pivotally mounted on the washer-base and adapted to engage and lock one of the nut-encompassing arms of the lock-iiap, said flap being apertured to receive the end of said rotatable clasp, substantially as described.

2. In a nut-lock, the combination, with a IOO bolt-accommodating Washer-base and a. nutdownwardly-projected lugs adapted to en- :o encompassing lock-Hap, hinged together, of gage the surface against which said washereu integral side shoulder on the Washer-base, base rests, substantially as described.

a. rotatable side clasp, having one end pivot- In testimony whereof I afix my signature 5 -fully mounted upon said integral side shoulin presence of two Witnesses.

der and the other end thereof provided with M. L. THEDFORD.

n. bent pal-t; a nut-encompassing arm provided Witnesses:

with an aperture near its end to engage said A. C. DUNLOP,

bent part, and n. Washer-base provided with MCSE MILLER. 

